Without delay, let's solve this. We've got 520 and we will be multiplying it by 5, that is, adding 520 to itself 5 times.
Step 1: 0 + 520 = 520
Step 2: 520 + 520 = 1040
Step 3: 1040 + 520 = 1560
Step 4: 1560 + 520 = 2080
Step 5: 2080 + 520 = 2600

So, 520*5 = 2600